That Tiny Tach is a great tool. Simple to use. Inductive pickup right off of the plug wire. I have a single cylinder ultralight aircraft that I fly, I use the Tiny Tach to monitor my RPM's. on the Briggs V-Twin.

Just a single cable with two wires inside. Wrap one around your plug wire and clip the other (Red it think) to a ground and start it up. It updates itself every half second or so. Can be permanently installed or stored in your toolbox for working on your lawn mower!

I bought a few for 20.00, used off of eBay. The guy was upgrading his karts at a go-kart track and parting out the pieces, he had a tiny tach on each kart so the attendants could tell at a glance if the governors were set right.

I picked up the C5 today from the shop. They went over the bike and got the headpipe bolts properly tightened. I was advised to check the bolts from time to time.

The tech said that this C5 has more power than the others in the shop. 800 miles probably makes a big difference from the demo unit with 200.

The backfiring is mostly gone with just some reminders upon deceleration. It seems to have more acceleration now than before with the stock torpedo. The sound is MUCH better and not all that loud, imho.

I wish it didn't stick out as far as it does. The rear bracket attaches to the outside of the passenger peg. The stock pipe bracket attaches to the inside of the peg.

Some folk here have said it's best to wait until the engine is broken in. I fitted mine (goldstar from watsonian) after about 2000 miles. I doubt it'll run lean - the ECU is able to adjust to a wide tolerance. I still get around 85 mpg (UK Gallon). It backfires occasionally, but more a bit of burbling on the overrun.

DON'T fool with what looks like an old fashioned idle speed adjustment screw near the round pulley with the throttle cables. It is the throttle position sensor and has a LOT to do with how your bike runs. It is a key element in telling the computer where your throttle is and where things start at idle. If you have fooled with it I would suggest you get it reset. If you want to change the idle speed there is a limited adjustment on the top of the throttle body as others have indicated. It is a large brass screw.